JPS6010592A - Dimming system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a system for fully controlling the dimming level of output light of a lighting fixture.

BACKGROUND OF THE INVENTION A proposed system in which the entire dimming level of a lighting fixture stored in memory is changed by fully rotating an encoder wheel is shown in FIG. The light levels corresponding to each of the two luminaires are shown in Figure 1 (1
) in reference mark I! 1. l! 2 are shown respectively. When the encoder wheel is rotated to increase the dimming level from time t1 to t4 as shown in FIG. At time t2, the maximum dimming level is reached, which is, for example, a conduction angle of 100 degrees.Another dimming level reaches the maximum dimming level at time t3, as indicated by reference mark I!2. 'After that, even if the encoder wheel is operated continuously, the contents stored in the memory will not be updated.

At time t5, the encoder wheel is operated and the result shown in FIG.
When the dimming level is lowered as shown in 3), the dimming levels of the two lighting devices become the same and are decreased until time t6.

Furthermore, when the dimming level is lowered by 1 at times tll to 13, the dimming level 12 becomes the lowest limit value, for example, a disappearing state, at time t12, and regardless of subsequent encoder wheel operations, the memory The content remains constant.

When an operation is performed to completely increase the IMI light level between times t14 and t15, the dimming level increases by one inch, which is the difference between the two dimming levels 11 and 12 at time t13.

In the prior art such as Jin's, it is not possible to increase or decrease the dimming level while keeping the difference in dimming level between two lighting devices constant.

Another prior art solution to this problem is shown in FIG.

The light control levels of the two light control devices are shown in Figure 2 fl).
<s't? +z 3 and 14, respectively. At time t21, the encoder wheel is operated to
+), the operation for increasing the dimming level is performed over the period at time t4''i!, time t2.
2, the adjustment C level 13 of one lighting fixture becomes the maximum value, and thereafter the contents of the memory are updated until time t24. At time t23, the dimming level 14 of the other lighting fixture becomes the maximum level, and thereafter the contents of the memory are updated until time t24.

At time t25, the encoder wheel is fully operated and the second
As shown in Figure (3), if an operation is performed to completely reduce the dimming level over the period up to time t30, the memory contents will start to decrease from time t25, and it will not be until time t26 that the dimming level 14 will be reached. It continues to decrease. Also time t2
Dimming level I for the first time since I turned 7! 3 is decreasing. At time t28+t29, the dimming level f4, 13
becomes the minimum value, and after that, \g- in the memory is updated until time t30.

The encoder wheel is turned on from time t31 to t34'E! When trying to increase the entire dimming level by increasing the dimming level, it is not until time t32 that the dimming level I! 3 increases, and the dimming level 14 does not increase until the subsequent time t33.

Therefore, in the prior art shown in Figure 1, the actual dimming level changes after the encoder wheel is operated.
There is a time lag and poor operability.

An object of the present invention is to provide a dimming method that uses fcli to maintain a constant difference in dimming levels between a plurality of lighting equipment and has improved operability.

heavenly example FIG. 3 is a block diagram of one embodiment of the present invention.

The encoder wheel 1 is rotated manually,
During its rotation in one direction, a signal is given to the pulse generator 4 from line 2, which causes the pulse generator 4 to
The number of pulses corresponding to the rotation angle of the encoder wheel 1 is generated in a carantough manner through the encoder wheel 1. When the encoder wheel 1 is rotated in the opposite direction, a signal for decreasing the dimming level is given from line 8 f'L, and the pulse generator 4 generates pulses from line 5 to 4 with the number of pulses corresponding to the angle of rotation.
put out The pulses from the pulse generator 4 are applied to the amplifier down counter 7 via line 5, and the up-count and down-count operations of this carantuff are performed by No. 46 from line 9, and each counting operation is performed by line 9. 7 of encoder wheel 1 via 2, 8
It corresponds to the direction of rotation.

The count value from counter 7 is provided via line 10 to 11 to the control device. ! 1ili Tsukuda device +4t11 is
The data corresponding to the current dimming level stored in the memory 15 is read through the line 16, and the data corresponding to the count value of the carantuff is subtracted or added to the stored contents of the memory 15 by the data representing the 0 level gold. All operations such as q- are performed and applied to the memory 15 from line 18 to update the contents of the memory 15.

Signals for controlling the dimming level of each of the plurality of lighting devices are derived from the line 20, and the energization angle and the like are controlled.

Referring to FIG. 4, the processing circuit 12 moves from step n1 to step n2, and the control device 11 reads the count value D1 of the counter 10=5: Thereafter, the entire carantuff is reset. In step n3, it is determined whether the dimming level of the output light of the lighting equipment should be increased. The lighting condition of the lighting fixture whose dimming level is set the darkest (i.e., among all the lighting fixtures) is determined to be the maximum (iNt, for example, whether the energization angle is 100%), and if so. If not, the data stored in the memory 15 is changed for all lighting equipment based on the WJ1 formula.

D3=D2+D1 (1) Here, D2 is the A1 white that was stored in the memory 15 before the FjlAi light level was changed.

When it is determined in step n3 that the i+,',I light level should be completely reduced, the process moves to step n6, and the dimming level of i4° of all the lighting fixtures is also set to be bright. It is determined whether the lighting equipment has reached its minimum dimming level, for example, when the light is turned off, and if not, the process moves to step n7, and the stored content D2ig of the memory 15 is
Update based on formula 14'2.

D 3 = D 2 - D 1 ...(2) When the dimming level is the lowest among all the lighting fixtures, and when the dimming level is at the maximum value, and when the dimming level is the highest among all the lighting fixtures. When it is determined that the lighting equipment with a portrait level has reached the minimum value, the process moves to step 118, and! ! +ij
It is determined that the optical operation should be terminated, and the operation is completely terminated in step n9.

Referring to Figure 5, the dimming level of the two lighting fixtures is set to 5.
The difference in the dimming level of these luminaires is indicated by the reference symbol W1. At the dimming level @) where the dimming level of the two lighting fixtures has not reached the maximum value 100 or the minimum value O
keep it.

At time t41, when the encoder wheel 1 is operated to increase the dimming level of the output light, at time t42,
Dimming level I! Reach 5Fi maximum value.

The dimming level 16 of the other lighting device increases from time t41 and reaches the maximum value at time t43. memory 1
M in 5! The value corresponding to l light level 15 is at time t
It continues to increase up to 43. After time t43, that is, after the value indicated by reference numeral 16, which indicates the lowest dimming level of all the lighting equipment, reaches the maximum value, the processing circuit 12 calculates the value based on the first equation in the memory 15. Stop updates. At the subsequent time t44, the operation of the encoder wheel 1 is stopped.

At time t45, encoder boil 1 total time t49
Perform the operation to completely lower the light level of the lighting equipment. After time t45, the dimming level 1!6 immediately decreases and reaches the minimum value 0, which is predetermined for each lighting device, at time t47. Nl't! light level 1
5, the stored content of the memory 15 drops from time t46 to the maximum value 1oO to time t48. At this time t48, the value reaches a predetermined minimum value corresponding to that lighting fixture. The stored contents of memory dimming are dimming level I! 6, it decreases with updating based on the second equation from time t47 to time t48. At time t48,
The dimming level of the brightest lighting fixture among all the lighting fixtures! After time t48 when 5 reaches the minimum value, the update operation based on the second equation of the memory 15 is completely stopped.

As shown in FIG. 5(2) from time t50 to t52, when the encoder boiler 1 is rotated to increase the dimming level, the dimming level I! 5 begins to increase immediately.

After time t50, the contents of the memory 15 corresponding to the light control levels 7 to 6 are updated based on the first equation, and when reaching time t51, the light level l! 6 is increased. At time t52, when the operation of the encoder wheel 1 is stopped, the 11M light level e5°16 changes to that time t52.
is kept at the value at .

In this way, before time t42, from time t46 to t47,
In each period after time t51, the two dimming levels f5 and f6 are changed simultaneously while maintaining a predetermined constant difference Wl. After one of the dimming levels 15.16 reaches the maximum or minimum value, the lighting fixture with the lowest dimming level reaches its maximum value, and After the maximum dimming level of the lighting equipment reaches the minimum value, memory 1
50 update operation is stopped. Therefore, there is no possibility that there will be a delay of 1 when changing to the opposite dimming direction.

In the embodiment described above, the dimming level of the luminaire is stored in the memory 15.
However, as another embodiment of the present invention, all lighting equipment may be controlled by the results calculated in the control device 11 based on the outputs from the memory 15 and the counter 10. .

Effects As described above, according to the present invention, the difference in the dimming level of a plurality of lighting fixtures can be reduced by keeping the dimming level of each of the lighting fixtures constant within the range of the maximum value or minimum value, and When the light level is at the maximum value or the minimum value, it can be changed immediately in response to the signal from the dimming signal generating means, without causing any time delay. Therefore, usability is improved.

[Brief explanation of the drawing]

FIG. 1 is a waveform diagram for fully explaining the prior art, FIG. 2 is a waveform diagram for fully explaining other prior art, FIG. 3 is a block diagram of an embodiment of the present invention, and FIG. 4 is a waveform diagram for explaining the entire prior art. FIG. 5 is a flow chart for explaining the operation of the embodiment shown in the figure, and FIG. 5 is a waveform diagram for explaining the operation of the embodiment. DESCRIPTION OF SYMBOLS 1...Encoder wheel, 4...Pulse'JP=generator, 7...Counter, 11...Control device, 12...
・Processing circuit, 15...Memory agent Patent attorney Kei Nishikyo Partial procedure correction shop July 31, 1981 J' [Katanaga Palace M-g. 1. Japanese Patent Application No. 1143114/1986 2. Name of the invention Light control method 3. Person making the amendment “1f Relationship with the case Applicant Address 1048 Kadoma, Kadoma City, Osaka Name (5)
83) Matsushita Electric Works Co., Ltd. Representatives: Iku Kobayashi (4), Takumi Dai (1) Address: 1-13-38 Nishihonmachi, Nishi-ku, Osaka Shinko-san Building Country Equipment EX 0525-5985 INTAPT
J' International FAX GIIl&GII (06)538
-02476, Drawing 7 subject to correction, and Figure 5 (1) of the content drawing of correction are as attached. that's all

Claims (1)

[Scope of Claims] In a dimming method that performs dimming control while maintaining a difference in dimming level determined by Kaneko of a plurality of lighting devices, a dimming signal generating means for deriving all signals for changing the dimming level entirely; , a memory that stores the output from the dimming signal generation means, and
, means for controlling the dimming level of each luminaire based on the contents stored in the memory, and controlling the dimming level of the luminaire after reaching a predetermined value of the dimming level of all the luminaires. A dimming method characterized in that a change in a dimming level caused by an output from a dimming signal generating means in a changing direction is stopped.